Prosecutors with District Attorney Leon Cannizzaro's office convicted Glenn Metz Tuesday morning. Court proceedings began earlier this week when he pleaded guilty to one count of manslaughter.

Previous reports from WDSU state that Metz was arrested days after Jamal Christian was found dead in 2012 outside the Mahalia Jackson Elementary School. The shooting took place after a second line parade with the gunshot killing the victim "instantly," according to a news release.

Both Metz and Christian had been classmates at Booker T. Washington High School before Metz dropped out after the 10th grade. Witness told officers that he did not like Christian because they were from different neighborhoods.

Authorities at the scene of the shooting were able to collect surveillance footage from the elementary school. The homicide was recorded and used during court proceedings.

LaShawn Wells, Metz's accomplice in the homicide, pleaded guilty to manslaughter last week. He will spend the next 30 years in prison as a habitual offender.

"As I have been saying for years, the lack of a high school education and involvement in the narcotics trade make an individual far more likely to be involved in violent criminal activity," Cannizzaro said. "It is unfortunate that someone could not turn this young defendant around before his conduct escalated to this level."

Metz also plead guilty to one count of possession with intent to distribute cocaine and one count of distribution of bunk. Those charges were for incidents prior to the 2012 homicide.